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Relation between active fluctuation and response in living matter

Research Project

Project/Area Number 23740290
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Mathematical physics/Fundamental condensed matter physics
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

MURAYAMA Yoshihiro  東京農工大学, 大学院・工学研究院, 准教授 (60334249)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords揺らぎ / 応答 / ボルボックス / 走光性 / 揺らぎと応答 / 能動的揺らぎ / 周波数応答
Research Abstract

A relation between fluctuation and response in phototactic behavior in volvox colonies was investigated to elucidate the relation between active fluctuation and response in living matter. We found that the larger velocity fluctuation is, the larger response is. We obtained several experimental equations and coefficients for the fluctuation and the response, which indicate that our experimental system will be a useful prototype to investigate the statistical properties in living matter.

Report

(3 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Research-status Report
  • Research Products

    (10 results)

All 2013 2012 2011 Other

All Presentation (10 results)

  • [Presentation] ボルボックスの走光性における線形応答と揺らぎ2013

    • Author(s)
      村山能宏,尾崎正志,乙川俊也
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学東広島キャンパス
    • Year and Date
      2013-03-28
    • Related Report
      2012 Final Research Report
  • [Presentation] Relation between fluctuation and response in phototactic behavior of Volvox colonies2013

    • Author(s)
      Yoshihiro MURAYAMA, Masashi OZAKI, and Shunya OTOKAWA
    • Organizer
      Self Organization and Emergent Dynamics in Active Soft Matter
    • Place of Presentation
      Yukawa nstitute for Theoretical Physics, Kyoto University, Kyoto, Japan
    • Year and Date
      2013-02-19
    • Related Report
      2012 Final Research Report
  • [Presentation] ボルボックスの速度揺らぎと走光性の照度依存性2012

    • Author(s)
      尾崎正志,村山能宏
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学常盤台キャンパス
    • Year and Date
      2012-09-20
    • Related Report
      2012 Final Research Report
  • [Presentation] ボルボックス集団における能動的揺らぎと応答の関係2012

    • Author(s)
      村山能宏,尾崎正志,乙川俊也
    • Organizer
      基研研究会2012「非平衡系の物理-その普遍性を目指して-」
    • Place of Presentation
      京都大学基礎物理学研究所
    • Year and Date
      2012-08-01
    • Related Report
      2012 Final Research Report
  • [Presentation] 光刺激に対するボルボックスの揺らぎと周波数応答2012

    • Author(s)
      乙川俊也,村山能宏
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学西宮上ヶ原キャンパス
    • Year and Date
      2012-03-25
    • Related Report
      2012 Final Research Report 2011 Research-status Report
  • [Presentation] 光刺激に対するボルボックスの応答と適応2011

    • Author(s)
      尾崎正志,村山能宏
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学五福キャンパス
    • Year and Date
      2011-09-24
    • Related Report
      2012 Final Research Report 2011 Research-status Report
  • [Presentation] ボルボックスの走光性における線形応答と揺らぎ

    • Author(s)
      村山能宏,尾崎正志,乙川俊也
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学東広島キャンパス
    • Related Report
      2012 Annual Research Report
  • [Presentation] Relation between fluctuation and response in phototactic behavior of Volvox colonies

    • Author(s)
      Yoshihiro MURAYAMA, Masashi OZAKI, and Shunya OTOKAWA
    • Organizer
      Self Organization and Emergent Dynamics in Active Soft Matter
    • Place of Presentation
      Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, Japan
    • Related Report
      2012 Annual Research Report
  • [Presentation] ボルボックスの速度揺らぎと走光性の照度依存性

    • Author(s)
      尾崎正志,村山能宏
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学常盤台キャンパス
    • Related Report
      2012 Annual Research Report
  • [Presentation] ボルボックス集団における能動的揺らぎと応答の関係

    • Author(s)
      村山能宏,尾崎正志,乙川俊也
    • Organizer
      基研研究会2012「非平衡系の物理-その普遍性を目指して-」
    • Place of Presentation
      京都大学基礎物理学研究所
    • Related Report
      2012 Annual Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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